the act or an instance of seizing.
the state of being seized.
a taking possession of an item, property, or person legally or by force.
a sudden attack, as of epilepsy or some other disease.

Origin of seizure

First recorded in 1475–85; seize + -ure
Related formsnon·sei·zure, nounre·sei·zure, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for seizure

Contemporary Examples of seizure

Historical Examples of seizure

  • Bohun was speechless for a moment, stricken dumb by a second seizure of fury.

    The Fortune Hunter

    Louis Joseph Vance

  • Lady Coryston lived for some eight months after this seizure.

    The Coryston Family

    Mrs. Humphry Ward

  • Then Miss Colton told him of her father's seizure and gave him the note for you.

    The Rise of Roscoe Paine

    Joseph C. Lincoln

  • This seizure isn't alarming and there is absolutely no danger of contagion.


    Joseph C. Lincoln

  • But this first seizure was not so severe as to put a final arrest on his activities.

    The Scottish Reformation

    Alexander F. Mitchell

British Dictionary definitions for seizure



the act or an instance of seizing or the state of being seized
pathol a sudden manifestation or recurrence of a disease, such as an epileptic convulsion
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for seizure

"act of seizing," late 15c., from seize + -ure. Meaning "sudden attack of illness" is attested from 1779.

Online Etymology Dictionary, © 2010 Douglas Harper

seizure in Medicine




A paroxysmal episode, caused by abnormal electrical conduction in the brain, resulting in the abrupt onset of transient neurologic symptoms such as involuntary muscle movements, sensory disturbances and altered consciousness.convulsion
A sudden attack, as of a disease.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

seizure in Science



A sudden episode of transient neurologic symptoms such as involuntary muscle movements, sensory disturbances and altered consciousness. A seizure is caused by abnormal electrical activity in the brain, which is often diagnosed on an electroencephalogram. See also epilepsy.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.